DB::usingConnection() doesn't respect read/write type

[SajtiDH]

Laravel Version

10.48.4

PHP Version

8.2

Database Driver & Version

No response

Description

I wanted to use the mysql write connection by default for all DB operations including selects, to prevent issues caused by replication lag in a Job that is dispatched immediately after a write operation.

For this I used the following code:

        DB::usingConnection('mysql::write', function () {
            // my code
        });

During testing I realized that my Models and even queries executed by the DB facade still using the read connection for selects.

After did some debugging I found out it is because it works like this:

1. DB::usingConnection() replaces the default connection's name in the DatabaseManager
2. When DatabaseManager::connection() is used with default connection it doesn't get a $name param and it is resolved within a subsequent call to DatabaseManager::parseConnectionName() and then use only the first $database segment without the type to look for already created connection instance so the ::write part won't take effect.

Steps To Reproduce

Create any db connection config with both write and read type and try to directly connect to the write host using DB::usingConnection()

        DB::usingConnection('mysql::write', function () {
            AnyModel::first(); // This will use the read connection
        });

[driesvints]

Thanks. Seems you already sent in a PR so let's see how it goes.